Question

0.3(0.4х+7)=0.4(0.8х-3)+2

Answer 1

0,12х + 2,1 = 0,32 - 1,2х + 2

1,34х = 0,22

х = 0,17 (я округлил)

Answer 2

To solve this equation, you'll need to simplify and isolate the variable 'x.' Here's how you can do it step by step:

1. Distribute the constants on both sides of the equation:

   0.3(0.4x + 7) = 0.4(0.8x - 3) + 2

   This becomes:

   0.12x + 2.1 = 0.32x - 1.2 + 2

2. Move all the terms involving 'x' to one side of the equation and the constants to the other side by subtracting 0.12x and 2.1 from both sides:

   0.12x - 0.32x = -1.2 + 2 - 2.1

3. Combine like terms:

   -0.2x = -1.2 - 0.1

4. Subtract 0.1 from both sides:

   -0.2x = -1.3

5. Now, divide both sides by -0.2 to solve for 'x':

   x = -1.3 / -0.2

   x = 6.5

So, the solution to the equation is x = 6.5.